CN2362644Y

CN2362644Y - Spiral type champing tool

Info

Publication number: CN2362644Y
Application number: CN 99220189
Authority: CN
Inventors: 周衍鲁; 周衍华
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-19
Filing date: 1999-03-19
Publication date: 2000-02-09
Anticipated expiration: 2009-03-19

Abstract

The utility model relates to an improved structure of a fixture. The utility model is composed of a fixed main body, a screw cap, a separated table, and a spring. The inner part of the fixed main body is provided with a taper hole, and the inner part of the taper hole is provided with at least one taper table and the spring. A top cap is matched with the screw cap. When the utility model is used, a test piece is inserted from the screw cap into a middle hole of the separated circular table. When pulled outwards, the test piece is tighter, and the screw cap is screwed tightly to achieve the purpose of unloading. The utility model has the advantages of easy manufacture, fast clamping and unloading, low cost, and simplicity and dexterity. Besides, the utility model can be used for lamping objects in a one-way, a two-way, and a multiway ways.

Description

Spiral anchor clamps

The utility model belongs to the machined apparatus, particularly relates to equipment or connector that tension test machine clamp, mechanics experimental equipment anchor clamps etc. are used for gripping objects.

The existing domestic and international tensile test fixture of producing is dovetail groove type, this type of clamp structure complexity, and the production difficulty is big, the cost height, the scope of application is limited, operation is inconvenient.

The purpose of this utility model provide a kind of simple in structure, performance is high, production cost is low, the scope of application is big, simple dexterous spiral anchor clamps of novel clamp.

The purpose of this utility model realizes by the following technical solutions: spiral anchor clamps provided by the utility model, form by fixed body, screw lid, separating table, spring.In the fixed body is bellmouth, is provided with at least one taper platform and spring in taper hole, matches with screw lid in the top.The footpath should be greater than aperture on the bellmouth of fixed body at the bottom of the awl of taper platform, vertex of a cone footpath should be less than aperture on the bellmouth of fixed body, guarantee that promptly the taper separating table can move up and down in taper hole, the taper platform is to be formed to the chorista that is separated at least two by upright along axis, and promptly separation member is formed by (being preferably three) more than two.The conical surface of fixed body cone-shaped inner hole can be the plane or with can be arcwall face, the angle of separating table should be consistent with the internal taper hole tapering of fixed body.

Use when loading, test specimen is inserted in the mesopore of separating table from screw lid, the awl bottom surface of the screen resilience compressing taper platform of spring, the taper platform is combined with the fixed body internal taper hole, when test specimen is pulled outwardly, perforate closure on the taper platform, pulling force is big more, the mesopore of taper platform shrinks more, then test specimen blocked tight more.During unloading, screw lid presses down separating table, and it is opened, automatically unloading.The utility model preferred version is: screw lid is positioned at the fixed body top, can be " U " shape and " W " shape, and the utility model illustrates based on " W " shape.Can be used for unidirectional, two-way and multidirectional clamping object, fixed body can be one when multidirectional, and other can dispose as required.

The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

In the accompanying drawings, the 1st, screw lid, the 2nd, fixed body, the 3rd, separating table, the 4th, spring.

As shown in the figure, in the fixed body 2 bellmouth, in order to separating table 3 and spring 4 to be installed, screw lid 1 cooperates with the top spiral of fixed body 2.Separating table 3 in the taper hole and spring 4 cooperate, during loading, and 3 times pressing springs 4 of separating table, separating table 3 opens automatically, and object inserts the mesopore of separating table 3, and spring 4 is gone up bullet, clamping article automatically then.During unloading, screw screw lid 1 and make its middle protuberance position press down separating table 3, make itself and fixed body 1 internal taper hole keep away disengagement, separating table 3 each part open automatically, and pine is held test specimen.Then, separating table 3 automatically resets under the effect of spring 4.

The utility model has the advantages that: production cost is low, and the scope of application is big, and is simple dexterous. Can be single To, two-way and Multi-way holding object.

Claims

1. spiral anchor clamps, form by screw lid (1), fixed body (2), separating table (3) and spring (4), it is characterized in that in the fixed body (2) being bellmouth, be provided with separating table (3) and spring (4) in taper hole, matches with screw lid (1) in its top.

2. spiral anchor clamps according to claim 1, it is characterized in that the awl of separating table (3) at the bottom of the footpath should be greater than aperture on the bellmouth of fixed body (2), its vertex of a cone footpath should be less than aperture on the bellmouth of fixed body (2).

3. spiral anchor clamps according to claim 1 and 2 is characterized in that the conical surface of fixed body (2) cone-shaped inner hole is plane or arcwall face.

4. spiral anchor clamps according to claim 1 is characterized in that separating table (3) is the taper platform that the separation member more than two is formed, and its tapering is consistent with the internal taper hole tapering of fixed body.

5. spiral anchor clamps according to claim 4 is characterized in that the taper platform preferably is made up of three separation members.